EARLY RELEASE: Waning 2-Dose and 3-Dose Effectiveness of mRNA Vaccines Against COVID-19-Associated Emergency Department and Urgent Care Encounters and Hospitalizations Among Adults During Periods of Delta and Omicron Variant Predominance - VISION Netwo...

Published on February 11, 2022

This report describes how vaccine effectiveness against COVID-19-associated emergency department/urgent care visits and hospitalizations was higher after the third dose but decreased with time.

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EARLY RELEASE: Effectiveness of Maternal Vaccination with mRNA COVID-19 Vaccine During Pregnancy Against COVID-19-Associated Hospitalization in Infants Aged <6 Months - 17 States, July 2021-January 2022

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